From c36de0f02e6a2b97124df9036a68129decfbb04f Mon Sep 17 00:00:00 2001
From: Kawe Mazidjatari <48657826+Mauler125@users.noreply.github.com>
Date: Sat, 10 Aug 2024 00:48:32 +0200
Subject: [PATCH] Recast: add math function to perform scale after vectors are
 added

This is not the same as rdVmad.
---
 src/thirdparty/recast/Shared/Include/SharedCommon.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/thirdparty/recast/Shared/Include/SharedCommon.h b/src/thirdparty/recast/Shared/Include/SharedCommon.h
index 56c49b6e..b6c23cbf 100644
--- a/src/thirdparty/recast/Shared/Include/SharedCommon.h
+++ b/src/thirdparty/recast/Shared/Include/SharedCommon.h
@@ -139,6 +139,18 @@ inline void rdVmad(float* dest, const float* v1, const float* v2, const float s)
 	dest[2] = v1[2]+v2[2]*s;
 }
 
+/// Performs a scaled vector addition. ((@p v1 + @p v2) * @p s)
+///  @param[out]	dest	The result vector. [(x, y, z)]
+///  @param[in]		v1		The base vector. [(x, y, z)]
+///  @param[in]		v2		The vector to add to @p v1. [(x, y, z)]
+///  @param[in]		s		The amount to scale the addition result of @p v1 and @p v2.
+inline void rdVsad(float* dest, const float* v1, const float* v2, const float s)
+{
+	dest[0] = (v1[0]+v2[0])*s;
+	dest[1] = (v1[1]+v2[1])*s;
+	dest[2] = (v1[2]+v2[2])*s;
+}
+
 /// Performs a linear interpolation between two vectors. (@p v1 toward @p v2)
 ///  @param[out]	dest	The result vector. [(x, y, x)]
 ///  @param[in]		v1		The starting vector.